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ESC system without pressure sensor and control method thereof

A pressure sensor and control method technology, applied in the direction of brakes, etc., can solve the problems of cost increase and increase of hydraulic control unit processing procedures, etc., and achieve the effect of simplifying the structure, reducing production costs, and reducing costs

Active Publication Date: 2019-02-05
TIANJIN TRINOVA AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this configuration has a certain cost increase due to the use of a master cylinder pressure sensor, and also increases the processing procedures of the hydraulic control unit (HCU) body

Method used

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  • ESC system without pressure sensor and control method thereof
  • ESC system without pressure sensor and control method thereof
  • ESC system without pressure sensor and control method thereof

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Experimental program
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Embodiment 1

[0033] figure 1 It is a schematic diagram of a brake pipeline of an ESC system applicable to the control method of the present invention. Of course, those skilled in the art should understand that the present invention can also be applied to other types of brake pipelines. The following introduction to the brake pipeline is only for the convenience of those skilled in the art to understand the present invention.

[0034] Such as figure 1 As shown, the automobile brake system includes: brake master cylinder 10, motor 11, return plunger pump 12, 1# check valve 131, 2# check valve 132, 3# check valve 133, 4# check valve Valve 134, 5# one-way valve 135, 6# one-way valve 136, normally open pressure limiting valve 14, normally closed suction valve 15, normally open booster valve 16, normally closed pressure reducing valve 17, accumulator 18, damping Device 19, 0# pipeline 20, 1# pipeline 21, 2# pipeline 22, 3# pipeline 23, 4# pipeline 24, brake wheel cylinder 31.

[0035] The co...

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PUM

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Abstract

The invention provides an ESC (electronic stability control) method implemented by an ESC system without pressure sensors. The ESC system at least comprises an ABS (antilock brake system) module and an AYC (active yaw moment control) module. The ESC system is mounted on a controlled vehicle. A conventional ESC method includes carrying out control by the aid of pressures of master cylinders of brakes. The pressures of the master cylinders of the brakes are measured by pressure sensors. The ESC method has the advantages that the conventional ESC method is improved, the ESC method can be applied to the ESC system without the pressure sensors, accordingly, the cost of the ESC system can be reduced, and the ESC method is favorable for popularizing and applying the ESC system; movement data of the vehicle and rotational speed data of tires are ingeniously utilized for effectively evaluating the pressures of master cylinders, errors generated during evaluation can be modified, and accordingly the ESC method is high in precision and good in applicability.

Description

technical field [0001] This patent relates generally to brake control systems for motor vehicles, and more particularly to a method of implementing Electronic Stability Control (ESC) for a vehicle without a master cylinder pressure sensor. Background technique [0002] ESC is an active safety brake control system widely used in passenger cars at present. It includes three subsystems: anti-lock brake (ABS), traction control system (TCS), and active yaw moment control (AYC). . ESC controls the longitudinal stability of the vehicle by independently controlling the braking of the four wheels to ensure that the wheels always make full use of the ground adhesion. At the same time, ESC adjusts the yaw rate and side slip angle of the vehicle by applying different braking forces to the left and right wheels to generate a yaw couple moment, so that the vehicle can run as far as possible according to the driver's desired track. [0003] The currently widely used ESC controllers inclu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/1761B60T8/1755B60T8/172
CPCB60T8/172B60T8/17551B60T8/1761B60T2201/02B60T2220/04
Inventor 陈杰李亮陆逸适
Owner TIANJIN TRINOVA AUTOMOTIVE TECH CO LTD